Base for basketball backstop



FIG. 1 is a perspective view of a base for basketball backstop showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings depict portions of the base for basketball backstop that form no part of the claimed design. 

CLAIM The ornamental design for a base for basketball backstop, as shown and described. 